MineClone2/mods/ITEMS/mcl_walls/init.lua

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local modname = minetest.get_current_modname()
local modpath = minetest.get_modpath(modname)
local S = minetest.get_translator(modname)
mcl_walls = {}
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local function rshift(x, by)
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return math.floor(x / 2 ^ by)
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end
local directions = {
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{x = 1, y = 0, z = 0},
{x = 0, y = 0, z = 1},
{x = -1, y = 0, z = 0},
{x = 0, y = 0, z = -1},
{x = 0, y = -1, z = 0},
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}
local function connectable(itemstring)
return (minetest.get_item_group(itemstring, "wall") == 1) or (minetest.get_item_group(itemstring, "solid") == 1)
end
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local function update_wall(pos)
local thisnode = minetest.get_node(pos)
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if minetest.get_item_group(thisnode.name, "wall") == 0 then
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return
end
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-- Get the node's base name, including the underscore since we will need it
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local colonpos = thisnode.name:find(":")
local underscorepos
local itemname, basename, modname
if colonpos then
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itemname = thisnode.name:sub(colonpos+1)
modname = thisnode.name:sub(1, colonpos-1)
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end
underscorepos = itemname:find("_")
if underscorepos == nil then -- New wall
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basename = thisnode.name .. "_"
else -- Already placed wall
basename = modname .. ":" .. itemname:sub(1, underscorepos)
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end
local sum = 0
-- Neighbouring walkable nodes
for i = 1, 4 do
local dir = directions[i]
local node = minetest.get_node({x = pos.x + dir.x, y = pos.y + dir.y, z = pos.z + dir.z})
if connectable(node.name) then
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sum = sum + 2 ^ (i - 1)
end
end
-- Torches or walkable nodes above the wall
local upnode = minetest.get_node({x = pos.x, y = pos.y+1, z = pos.z})
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if sum == 5 or sum == 10 then
if (connectable(upnode.name)) or (minetest.get_item_group(upnode.name, "torch") == 1) then
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sum = sum + 11
end
end
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--[[if sum == 0 then
sum = 15
end]]
minetest.add_node(pos, {name = basename..sum})
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end
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local function update_wall_global(pos)
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for i = 1,5 do
local dir = directions[i]
update_wall({x = pos.x + dir.x, y = pos.y + dir.y, z = pos.z + dir.z})
end
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end
local half_blocks = {
{4/16, -0.5, -3/16, 0.5, 5/16, 3/16},
{-3/16, -0.5, 4/16, 3/16, 5/16, 0.5},
{-0.5, -0.5, -3/16, -4/16, 5/16, 3/16},
{-3/16, -0.5, -0.5, 3/16, 5/16, -4/16}
}
local pillar = {-4/16, -0.5, -4/16, 4/16, 0.5, 4/16}
local full_blocks = {
{-0.5, -0.5, -3/16, 0.5, 5/16, 3/16},
{-3/16, -0.5, -0.5, 3/16, 5/16, 0.5}
}
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--[[ Adds a new wall type.
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* nodename: Itemstring of base node to add. Must not contain an underscore
* description: Item description (tooltip), visible to user
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* source: Source block to craft this thing, for graphics, tiles and crafting (optional)
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* tiles: Wall textures table
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* inventory_image: Inventory image (optional)
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* groups: Base group memberships (optional, default is {pickaxey=1})
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* sounds: Sound table (optional, default is stone)
* hardness: Hardness of node (optional, default matches `source` node or fallback value 2)
* blast_resistance: Blast resistance of node (optional, default matches `source` node or fallback value 6)
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]]
function mcl_walls.register_wall(nodename, description, source, tiles, inventory_image, groups, sounds, hardness, blast_resistance)
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local base_groups = groups
if not base_groups then
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base_groups = {pickaxey=1}
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end
base_groups.wall = 1
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local internal_groups = table.copy(base_groups)
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internal_groups.not_in_creative_inventory = 1
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local main_node_groups = table.copy(base_groups)
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main_node_groups.deco_block = 1
if source then
-- Default values from `source` node
if not hardness then
hardness = minetest.registered_nodes[source]._mcl_hardness
end
if not blast_resistance then
blast_resistance = minetest.registered_nodes[source]._mcl_blast_resistance
end
if not sounds then
sounds = minetest.registered_nodes[source].sounds
end
if not tiles then
if minetest.registered_nodes[source] then
tiles = minetest.registered_nodes[source].tiles
end
end
else
-- Fallback in case no `source` given
if not hardness then
hardness = 2
end
if not blast_resistance then
blast_resistance = 6
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end
end
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for i = 0, 15 do
local need = {}
local need_pillar = false
for j = 1, 4 do
if rshift(i, j - 1) % 2 == 1 then
need[j] = true
end
end
local take = {}
if need[1] == true and need[3] == true then
need[1] = nil
need[3] = nil
table.insert(take, full_blocks[1])
end
if need[2] == true and need[4] == true then
need[2] = nil
need[4] = nil
table.insert(take, full_blocks[2])
end
for k in pairs(need) do
table.insert(take, half_blocks[k])
need_pillar = true
end
if i == 15 or i == 0 then need_pillar = true end
if need_pillar then table.insert(take, pillar) end
minetest.register_node(nodename.."_"..i, {
collision_box = {
type = "fixed",
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fixed = {-4/16, -0.5, -4/16, 4/16, 1, 4/16}
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},
drawtype = "nodebox",
is_ground_content = false,
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tiles = tiles,
use_texture_alpha = minetest.features.use_texture_alpha_string_modes and "opaque" or false,
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paramtype = "light",
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sunlight_propagates = true,
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groups = internal_groups,
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drop = nodename,
node_box = {
type = "fixed",
fixed = take
},
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sounds = sounds,
_mcl_blast_resistance = blast_resistance,
_mcl_hardness = hardness,
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})
-- Add entry alias for the Help
if minetest.get_modpath("doc") then
doc.add_entry_alias("nodes", nodename, "nodes", nodename.."_"..i)
end
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end
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minetest.register_node(nodename.."_16", {
drawtype = "nodebox",
collision_box = {
type = "fixed",
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fixed = {-4/16, -0.5, -4/16, 4/16, 1, 4/16}
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},
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tiles = tiles,
use_texture_alpha = minetest.features.use_texture_alpha_string_modes and "opaque" or false,
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paramtype = "light",
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sunlight_propagates = true,
is_ground_content = false,
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groups = internal_groups,
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drop = nodename,
node_box = {
type = "fixed",
fixed = {pillar, full_blocks[1]}
},
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sounds = sounds,
_mcl_blast_resistance = blast_resistance,
_mcl_hardness = hardness,
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})
-- Add entry alias for the Help
if minetest.get_modpath("doc") then
doc.add_entry_alias("nodes", nodename, "nodes", nodename.."_16")
end
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minetest.register_node(nodename.."_21", {
drawtype = "nodebox",
collision_box = {
type = "fixed",
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fixed = {-4/16, -0.5, -4/16, 4/16, 1, 4/16}
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},
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tiles = tiles,
use_texture_alpha = minetest.features.use_texture_alpha_string_modes and "opaque" or false,
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paramtype = "light",
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sunlight_propagates = true,
is_ground_content = false,
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groups = internal_groups,
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drop = nodename,
node_box = {
type = "fixed",
fixed = {pillar, full_blocks[2]}
},
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sounds = sounds,
_mcl_blast_resistance = blast_resistance,
_mcl_hardness = hardness,
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})
-- Add entry alias for the Help
if minetest.get_modpath("doc") then
doc.add_entry_alias("nodes", nodename, "nodes", nodename.."_21")
end
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-- Inventory item
minetest.register_node(nodename, {
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description = description,
_doc_items_longdesc = S("A piece of wall. It cannot be jumped over with a simple jump. When multiple of these are placed to next to each other, they will automatically build a nice wall structure."),
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paramtype = "light",
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sunlight_propagates = true,
is_ground_content = false,
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groups = main_node_groups,
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tiles = tiles,
use_texture_alpha = minetest.features.use_texture_alpha_string_modes and "opaque" or false,
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inventory_image = inventory_image,
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stack_max = 64,
drawtype = "nodebox",
node_box = {
type = "fixed",
fixed = pillar
},
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collision_box = {
type = "fixed",
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fixed = {-4/16, -0.5, -4/16, 4/16, 1, 4/16}
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},
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collisionbox = {-0.2, 0, -0.2, 0.2, 1.4, 0.2},
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on_construct = update_wall,
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sounds = sounds,
_mcl_blast_resistance = blast_resistance,
_mcl_hardness = hardness,
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})
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if source then
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minetest.register_craft({
output = nodename .. " 6",
recipe = {
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{source, source, source},
{source, source, source},
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}
})
mcl_stonecutter.register_recipe(source, nodename)
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end
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end
dofile(modpath.."/register.lua")
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minetest.register_on_placenode(update_wall_global)
minetest.register_on_dignode(update_wall_global)